An idea can also be marketable just like any product or service and if executable properly, then can also be as valuable. Skilled people who sells idea often are called earn buy-in, which helps in increasing funds. A good salesperson specifies about the product they are selling to solve customer's pains. Likewise, by knowing an idea well enough, one should establish a stronger bond between what they are selling and what audience needs through conversation. To know more read the article at: http://www.cmswire.com/cms/social-business/the-art-of-selling-an-idea-029138.php